Alert archive / Texas / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 187, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Jul 30, 2004, 7:29 PM CDT for Hemphill County, Texas. It was in force for 61 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 30, 2004, 7:29 PM CDT (00:29 UTC)
- Expired
- Jul 30, 2004, 8:30 PM CDT
- In force
- 61 min
- Issued by
- NWS Amarillo, TX
- Area
- Counties, with a storm outline in the text
County Hemphill County, TX
The radar
The Amarillo radar (KAMA), 147 km from the middle of the area, began a volume at 00:29 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Dodge City, (KDDC), launched 00:00Z, 0.5 hours before the alert went out and 217 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1725 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 1347 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Amarillo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 30, 5:33 PM CDT, 1 hour 56 minutes earlier.
Area forecast discussion, Jul 30, 5:33 PM CDT, 1 hour 56 minutes before
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</html>Hazardous weather outlook, Jul 30, 1:00 PM CDT, 6 hours 29 minutes before
TEXAS/OKLAHOMA PANHANDLES HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AMARILLO TX 100 PM CDT FRI JUL 30 2004 OKZ001>003-TXZ001>020-310500- ARMSTRONG-BEAVER-CARSON-CIMARRON-COLLINGSWORTH-DALLAM-DEAF SMITH- DONLEY-GRAY-HANSFORD-HARTLEY-HEMPHILL-HUTCHINSON-LIPSCOMB-MOORE- OCHILTREE-OLDHAM-POTTER-RANDALL-ROBERTS-SHERMAN-TEXAS-WHEELER- 100 PM CDT FRI JUL 30 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE TEXAS AND OKLAHOMA PANHANDLES. .DAY ONE... ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE OVERNIGHT MAINLY ACROSS THE OKLAHOMA PANHANDLE AND NORTHWEST TEXAS PANHANDLE. IF THUNDERSTORMS DEVELOP THE MAIN SEVERE WEATHER THREATS WILL BE LARGE HAIL...DAMAGING WINDS AND HEAVY RAINFALL. .DAYS TWO THROUGH SEVEN... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... LIMITED SPOTTER ACTIVATION MAY BE NECESSARY TONIGHT ACROSS THE OKLAHOMA PANHANDLE AS WELL AS THE NORTHWEST TEXAS PANHANDLE. GOEHRING
In the hours before
Special weather statement, Jul 30, 7:24 PM CDT, 5 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AMARILLO TX 724 PM CDT FRI JUL 30 2004 TXZ010-310100- HEMPHILL- 724 PM CDT FRI JUL 30 2004 ...ISOLATED STRONG THUNDERSTORMS OVER EASTERN HEMPHILL COUNTY... THROUGH 800 PM...ISOLATED STRONG THUNDERSTORMS 10 MILES EAST OF CANADIAN WILL SLOWLY MOVE SOUTHEAST AT 5 MPH ALONG THE TEXAS AND OKLAHOMA STATE LINE. GUSTY WINDS TO NEAR 50 MPH...HAIL UP TO ONE HALF OF AN INCH IN SIZE...FREQUENT DANGEROUS CLOUD TO GROUND LIGHTNING...AND RAINFALL AMOUNTS IN EXCESS OF 1 INCH WILL LIKELY ACCOMPANY THESE STORMS. SLATTERY
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 8:45 PM CDT | Severe Thunderstorm Warning | AMA | Hemphill, Wheeler | 45 min |
| Jul 30, 9:35 PM CDT | Severe Thunderstorm Warning | AMA | Wheeler | 55 min |
| Jul 30, 10:23 PM CDT | Severe Thunderstorm Warning | AMA | Collingsworth, Wheeler | 52 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2004Every severe thunderstorm warning in 2004
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.